Internal-combustion-engine cooling system



A. CHRISTIANSON 1,780,517

INTERNAL COMBUSTION ENGINE COOLING SYSTEM Filed Sept. 22, 1927 5Sheets-Sheet l F' IG 1' l V lN\'I.EN1.'OwR Q 4 MMWW Nov. 4, 1930. A.cHm'nANsoN INTERNAL COMBUSTION ENGINE 'COOLING SYSTEM Filed Sept. 22,1927 5 Sheets-Sheet 2 FIG 2 INVENTOR llfllllllllll l IIIIIIFI Ill Nov.4, 1930. A. CHRISTIAN SON INTERNAL COMBUSTION ENGINE CQOLING SYSTEMFiled Sept. 22, 1927 5 Shets-Sheet 3 INVENTOR Nov. 4, 1930. A.CHRISTIANSON 8 INTERNAL COMBUSTION ENGINE 000mm SYSTEM FIG 5 INVENTORNov. 4, 1930. A. ci-lRlsTlANsoN ,5

H 5 INTERNAL comsusnou ENGINE 000mm SYSTEM Filed Sept. 22, 1927 5Sheets-Sheet 5 4 'wvmrm M www ANDREW Patenteol Nov. 4, H 193% TIONPENNSYLVANIA iNTERNAL-OOMBUSTIONENGEIvE coonine SYSTEM application filedSeptember 22 1327. SerialNo. 221,266, i

-This invention relates .to. motor driven railroadcars and moreparticularly to cooling systems for themotors employed in operating suchcars; l

An object of this invention is to provide a cooling system of the typesetforth-having an improved construction and arrangement of parts andincluding novel features that renderfit particularly'elficientandpractical asa ecunan adapted for use in mi' rb wThis" and other objectswhich will "be apparentto those skilled in this partlcular art are"accomplished by means of the invention illustrated in H the accompanyingdrawings, in which Figure 1 is: a. transverse sectional view' through arailroad car provided with a cooling system constructed in accordancewith one embodiment or this invention. Fig. 2 is asimilar view of a,portion of the arrangement shown in 1. Fig. 3 is a view or a detail. -Fi1 4 is view similar to Fig. 2

of another po-rtlon. ofthe'apparatus as shown 'in'Figf'l. Fig.5 is alongitudinalsectmnal View on thelin'e 55 of Fig. 1. Fig.6 is a yiew'similar to Fig; '1' showing amodified an rangement, and Figs. 7 *andf 8'are details alve usedin the arrangement shown m The particularembodiment. of this inven} tionwhich has been chosen for the purposesof'illustration includes a storage tank for sired type of pump canbe{employed for forcmg the fluid from the storage tank through thejaclr'et's of the'njiotor cylinders. The hot fluid is carried upwardlyto a collecting. or

mixingchamber above the motor and this chamber is connectedby pipingwith head-- ers extending longitudinally of the car heneath' the edgesof the roof. The cooling radiators are positioned.outsideof the carradiator units. tothe longitudinally extending headers,

The fluid flows upwardly through the inclined radiator units to the endsadjacent the center of the car and then into. headers which areconnected by piping extending downwardly through the root to radiatorunits.

return or collecting header from, which the fluid is returned by asuitable pipe back] A by-pass is provided oHRI sTIAnson, on PITTSBURGH,PnnnsYLvAnrA, ASSIGNOR To s'rnnnAn-D srnnnoan ooaronnrron, A oonronn Theradiator ing so thatas soon as the engine stops the cooling fluid isdrained by gravity from the radiators and'headers into the storage tank.

The latter 50 positioned that when the motor is idle the level of thefluid therein well above the highest j aclreton; the engine. i

As illustrated, the invention is shown in connectionwith a inotor drivenrailroad car 10 provided with a motor" 11, only part of" which is shownin Fig. 1. A storage tanlrl2v s connected to the water jackets. (not vcylinders by suitable shown) ot the; motor piping and a pump (not shown)of; any desired formis provided for forcing the water fromthe motorcylinders through vertically extending pipes 1-3 to a relatively smalldistributing tank- 14 positioned above the motor. The distributingchamber is connected by pipin'glti to headers 16 extending long}'tudinally along each sideof the car body beneath the edges of the 'car.roof 17 and eachi header is secured-in. place by straps 18 bolted toupright extensions 19 jofthe ,car body.. A pluralityof separateradiatorunits are supported .in inclined positions above and transversely"to'the car roof. and the lower end of'eachun'it has a header 20 con--nected inpa'rallelor 'in'shunt by piping 21 extending loosely throughopenings 22 in the car roof to headers 16. Each'branch pipe 21 isfprovided' with a manually operated.

valve 23 for opening-and: closing "the associated, radiator inlet and ahose connection 24 "is provided. for connecting each pipe 21 with theinlet25of-the associated radiator unit, Mechanism such fo r. example,'as a 'Petticoat-26jn10untedon the pipe 2'1is proradiator supportingbracket 27. "having an opening through which a pin 28 secured to andextending downwardly from the laCllfl' itor header is received, and aspiral spring 29 is interposed on the pin 28 between the bracket and theheader so as to provide a cushion support for absorbing; any vibrationsof the bracket. As shown, the S bracket 27 is rigidly secured to theroof 1'? of the car and has a hole or slot cut through the bent or faceportion of its extending end. The spiral spring 29, as shown, preferablyconsists of two sections one interposed above the face portion of thebracket 27, the other interposed below the face portion thereof. Thefluid transmitting radiator tubes 30, diagrammatically shown in Figs. 2and 4, are inclined upwardly from a tube sheet 31 in the inlet header toa tube sheet 32 in the radiator outlet header 33 which is connected bypiping 34 with a return header 35 extending longitudinally along thecenter ofthe car and supported beneath the I: roof by supporting straps36 bolted to the car lines 37. 'Theradiator outlet headers 33 of eachunit are connected in parallel with the return header 35 through thep1ping 34. The piping connecting the outlet headers of the variousradiator units with the collecting or return header 35 extend throughopenings 38 in the car roof which are surrounded by upwardlyextendingthe system.

flanges 39 cooperating with flanged plates or petticoats 4O bolted tothe piping 34 so as to cover the openings 38 above the surround- 'ingflanges 39 to prevent the entrance of rain or the like 1nto the car.

The outlet header of each radiator unit is provided with a baffle 41,see Fig. 4, which is spaced from the tube ends and extends from thebottom of the header to a position adjacent the top thereof. Such abrittle insures the complete filling of each i radiator unit and theflow of water through all the tubes thereof during operation of Thereturn header 35 is connected with a return pipe 42 for conveyingwatertherefrom back to the storage tank 12.

' bypass 43 having a valve 44 is provided for permitting the water toflow directly from the distributing or mixing chamber 14 through thepiping 15 and backto the storage tank 12 without passing through thevarious radiator units when it is desired to rapidly warm the motor instarting in cold weather, and this by-pass is conveniently operated-byopening or closing the controlling valve 44. g ve atig the ,w trii itaken fromthe storagetank by the circulating pump and From thedistributing tank the hot water flows to the longitudinally extendingheaders 16 communicating with the various radiator units positionedabove the car roof. From the header the water flows upwardly through thevarious piping connections 21 to;the associated radiator units where itis cooled and from which it returns through the pipes 34 to the returnheader 35 extending longitudinally of the car and connected to each ofthe radiator units. turned to the storage tank through the return pipe42. It will be apparent that any number of radiator units can be cut outof operation independently of any other units merely by closing theassociated inlet valves 23. It will also be apparent that opening of theby-pass valve 44 permits the circulating water to bypass all of theradiator units and return directlyto the storage tank from thedistributing chamber 14 so as to permit rapid warming of the motor incoldweather. 1

One advantage of the present system is the fact that it is completelyself-draining. The inclination of the radiator units and pipingconnections is obviously such, see Fig. 1,-that when the motor isstopped and the valve 44 open the water .will be drained by gravity fromall thevarious radiator units and connecting pipes back to the storagetank 12.

The latter is so arranged that when the syspresent invention of sucharrangement as to be capable of being employed in using either steam orwater as a cooling agent, and the arrangement is such that the systemcan be adapted for one or the other of such cooling agents merely by theoperation of a single valve. As illustrated, the water jackets of theengine are connected by piping 13? to a control valve located within themixing or distribution chamber 50 having a port 51 connected to thepiping 13. A second port 52 is connected by suitable piping 53 with thelongitudinally extending header 16 at each side of the car. Athirdport53 is connected by piping 55 to the storagetank 12 and a fourth port 56is connected to the central w header 35 by piping 57. Valve plug 58having suitable passages 59 for cooperating with the tt '39942 iYelY aree h h 3 The cooled water is then reh ports 51 and 52 and piping 53 tothe header 16. The cool water collected in the header flows through thepiping 57, valve ports 53 and 56 and piping 55 to the storage tank.

When steam is employed, the valve plug 1 58 is positioned as shown inFig.8. The heated'steam rises through-the piping 13. and flows throughports 51 and56 of the valve to piping 57,-whence it reaches theradiators ly through each radiator unit and collects in through theheader35 and associated radiator.

connections. The cooled steam runs outward the. longitudinal header 16from whence it I flows to the valve through the piping 53 and passesthrough the valve-ports 53 and 59 to the piping and thence to thestorage tank. I

pended claims.

Although I have described specificembodiments of this invention in moreor less detail,

it will be apparent that various changes, ad-

ditions, substitutions and omissions can be made therein wlthoutdeparting from the spirit of this invention or the scope of the ap- WhatI claim as new and desire to by Letters Patent is: l

1. The combination in a railroad motor car of a motor cooling systemincludinga radiator positioned above the roof of said car, a waterpipeextending loosely through an opening formedinsaid'roof, means forresilently supporting said radiator on said roof and a yieldingwater-conveying connection betweensaidpipe and said radiator.

2Q Thecombination in a railway motor car i of a motorcoolingsystemincluding a radiator positioned above the roof of said car,

. a radiator supporting bracket secured to said roof and a pin andspringconnectionbetween sald bracket and saldradiator. 1 J p 3. The,comblnatlon with a motor car having a cooling system that includesradiator units, of means rigidly secured tothe body of the carcooperating with means extending secure unit, so that said radiator unitwill be cushioned with respectto the body of said car.

roof thereof, of S shapedbrackets extending from and rigidly secured tothe car roof, each of, said brackets having a slot cut in its "upperface,pins secured to and extending.

from, said radiator units, each pin being po- .sitioned in one of saidslots, means interposed on eachQof said P1118 between each of saidbrackets providing a cushioned support for. said units. Y I

7. The combination with a motor car, ofa plurality of radiator unitspositioned trans versely on the'roof ofsaid car, 8 shaped bracketsextending'upwardlyfrom said roof r tioned above andinclining downwardlyfrom the transversecenter of theroof of said car, andconnected with saidheaders through suitable piping, 'saidheaders being connected throughsuitable piping to water jackets of the car and to a storage tank,valves interposed said piping for directing the flow of warmwater upwardthrough said radiator 6. The combination witha-motor car hav- 1ingsuitableradiatorunits positioned on the so up units and outward tosaid storage tank, and

for directingsteam downward throughsaid pipes and to said tank. r 1

In testimony-whereof, I have hereunto subscribed name this 25th dayof'July, 1927. v

' ANDREW CHRISTIANSON.

from the radiator units, additional means interposed between the abovementioned means for resiliently supporting said radiator units 7 on thebody of the car. I s

4. The combination with a motor car having suitable radiator units, ofmeans rigidly secured to the roof of said car and extending upwardlytherefrom, means extending down-' wardly from said radiator units andcooperating with the first'mentioned means, a spring positioned on thelast mentioned means and interposed to absorb vibrations of the motor 5.The combination with amotor c'ar cool- 111g system which includessuitable radiator units, of an extending bracket secured to the bodyportion of thecar, the extending end of said bracket having a slot cuttherein for re ceiving a pin secured to and extending from the radiatorunits, a spring interposedon said.

pin between said bracket. and the radiator

